KR100800535B1 - Fishing float - Google Patents

Abstract

The present invention relates to a hole jaw constituted by a projection-type knot catching portion. The present invention is characterized in that the stop knot formed on the fishing line and the knot line is configured to be caught in the projection-shaped knot hook portion formed in the hollow of the hole bobbin, so that the movement of the fishing line can be limited only to a certain range.

The hole teeth of the present invention do not need to use a component such as a conventional stop ball.

According to the present invention, since the projection-shaped knotting part is formed in the hole itself, it is possible to quickly arrange the hole in a usable state at the site of fishing, and the flow of the fishing line passing through the hole is very fast. It can be done smoothly.

 Protruding knot engaging portion in the present invention is formed in the hollow of the hole, it may be composed of a plurality of knot engaging projections arranged in an annular upward direction. The hollow portion may be formed by a guide tube penetrating the bore body.

Fishing, Bobber, Knot, Hang, Move, Restriction

Description

FISHING FLOAT}

1 is a perspective view showing a state of use of a conventional punch.

2 and 3 are cross-sectional views showing the action of the conventional punch.

4 is an exploded perspective view showing a hole jaw according to an embodiment of the present invention.

5 is a longitudinal cross-sectional view of a bore in accordance with an embodiment of the present invention.

6 and 7 are explanatory views for explaining the shape in which the weight body is placed in the embodiment of the present invention.

8 and 9 are a perspective view and a cross-sectional view of an embodiment of the hole jaw of the present invention, the buoyancy adjustment plate insertion slit is formed.

10 is an embodiment of the buoyancy control plate.

11 is an explanatory diagram illustrating the coupling of the buoyancy control plate to the present invention hole jaw.

It is explanatory drawing explaining the Example in which the horseshoe type weight body was located in the weight body support body.

FIG. 13 is an explanatory diagram of a knot line formed with a stop knot on a fishing line. FIG.

Figure 14 is an exemplary embodiment of the knot engaging projection formed on the projection type knot engaging portion of the hole jaw of the present invention.

Fig. 15 is an explanatory diagram for explaining that the stop knot is caught in the protruding knot locking portion of the hole jaw of the present invention.

16 is another embodiment of the present invention in which the projection-shaped knotting portion is formed in the cylindrical guide tube passing through the hole jaw.

<Explanation of symbols for the main parts of the drawings>

100: fishing line, 104: stop-knot,

120: hole body, 122: guide tube,

124: hollow part, 132: knot locking projection,

144: coupling hole, 146: plate insertion slit

The present invention relates to a hole jaw constituted by a projection-type knot catching portion. The present invention is an invention for a bore that restricts the movement of the fishing line by hanging the stop knot formed on the fishing line or knot rope hook portion.

Conventionally, a stop ball was used to limit the movement of a fishing line. A small hole called a knotted hole is formed in the stop ball, and the fishing line must be used to penetrate the small hole called the knotted hole, which is inconvenient for the assembly work of the hole for the fishing line. There were many cases.

A fishing bob is a signal when a fish bites a bait attached to a fishing needle, that is, a buoy that delivers a fisherman to an angler. The shape and type vary depending on the purpose.

In general, freshwater fishing is performed in a lake or river with little or no flow of water, and therefore, freshwater fishing is mainly used for sticks fixed to fishing lines. In this case, the length of the fishing line between the rod and the fishing needle on the end of the fishing line is fixed.

On the other hand, sea fishing is different from the method of freshwater fishing because there is a bird and the wave is running in the sea, and this sea fishing is used to assemble to move along the fishing line.

In sea fishing, although the bobber can be moved with respect to the fishing line, it is necessary to restrict it so that it can only be moved within a certain range with respect to the fishing line as necessary.

1, 2 and 3, a description will be given of a conventional hole bob with a stop ball for limiting the movement of the fishing line in the hole bob.

1 is a perspective view showing the structure of a conventional punch.

Hole jaw 20 has a hollow portion passing through the central portion in the longitudinal direction of the hole bob so that the fishing line 10 passes.

Conventionally, a stop ball 30 having a knot stop hole through which a fishing line penetrates is formed on an upper portion of a hole bob. In addition, a stop knot (12) forming a knot on a fishing line is formed at the top of the stop ball (30).

The hole bobs may move along the fishing line 10. However, the movement of the bobbin is limited by the motion of the knot stop hole of the stop ball 30 to the stop knot 12 formed in the fishing line.

The stop ball 30 is generally manufactured in a semi-spherical shape, for example. Or it may be formed of a hollow hemispherical structure. The diameter of the knot stop hole of the stop ball 30 is configured to be smaller than the diameter of the stop knot 12 formed in the fishing line, so that the stop knot does not pass through the knot stop hole.

In addition, the outer diameter of the stop bead should be larger than the diameter of the hollow of the hole jaw (20). If the fishing line is thrown into the sea, the fishing line 10 is lowered. However, since the bore 20 floating on the water surface comes into contact with the stop bead 30, and the stop bead 30 is caught by the stop knot 12, the downward movement is restricted.

2 and 3 are cross-sectional views showing the action of the conventional punch.

Sea fishing can be largely divided into full-flow fishing and semi-flow fishing. In the case of all-flow fishing, fishing means that fishing is performed freely along the fishing line according to the tide, and semi-flow fishing refers to a method of fishing by limiting the distance that the fishing float moves along the fishing line.

Therefore, for semi-flow fishing, it is necessary to limit the distance that the hole bobs 20 rise along the fishing line 10. In other words, it is necessary to limit the downward movement distance of the fishing line (10). To this end, the stop ball 30 having the knot stop hole 32 is positioned to move along the fishing line 10 at the upper position of the hole bobber 20. In the fishing line 10, a stop knot 12 for restricting the movement of the stop ball 30 is formed in the upper position portion of the stop ball 30.

The hole main body 22 is provided with the hollow part 26 which penetrates the center in the longitudinal direction so that the fishing line 10 may pass. The pore main body 22 is also called a fishery part. The hollow part 26 may be formed by, for example, a guide tube 24 penetrating through the longitudinal center of the hole body 22. In addition, the guide tube 24 may be formed integrally with the hole bobber body 22, may be formed separately to be coupled to the inside of the hole bobbin body. Figure 3 shows a state in which the rise movement is limited in the conventional water surface.

By the way, in the conventional hole teeth as described above, in the structure of limiting the upward movement of the hole teeth by the stop ball and the stop knot, there are the following problems.

Since the stop bead 30 is required as a separate component, in order to assemble the hole bobber 20 to the fishing line 10, first, the operation of assembling the stop bead 30 to the fishing line 10 should be performed first.

By the way, since the size of the stop ball 30 is not only small, but the diameter of the knot stop hole 32 formed in the stop ball is quite small, the stop ball 30 is sewn to the fishing line 10 through the knot stop hole. There is a problem that the work is quite cumbersome, and there is a fear that the stop bead 30 is lost during the work.

In addition, a large tensile force acts on the fishing line 10 in the process of fishing fish, if the difference between the diameter of the stop knot 12 and the diameter of the knot stop hole 32 of the stop bead 30 is not very large. That is, when the diameter of the knot stop hole 32 is relatively large, the knot stop 12 may pass through the knot stop hole 32 as it is, and in this case, the purpose of semi-flow fishing You can't achieve it.

On the contrary, when the difference between the diameter of the fishing line 10 and the diameter of the knot stop hole 32 is not very large, that is, when the diameter of the knot stop hole 32 is relatively small, the stop ball 30 is fishing. Since it moves in a tight state along the line 10, the stop bead 30 and the hole jaw 20 is made unnatural.

In this case, the movement of the bore 20 is not free and the fishing needle cannot be located at the proper depth in the water.

The present invention has been made in consideration of the above-described conventional problems, and forms a projection-type knot-hanging portion to allow a stop-knot formed in a fishing line to be caught in the hollow of the hole bobber. This does not require a component such as a stop bead for limiting the upward movement of the bore, it is easy to assemble the bore bobbin on the fishing line, and aims to facilitate the flow of the boulder.

The present invention for achieving the above object is characterized in that the stop knot is installed on the fishing line is configured to be hooked to the projection-shaped knot hook portion formed on the upper side of the hollow.

The projection-shaped knot catching portion of the present invention is characterized in that it is composed of two or more knotting protrusions projecting upward in the hollow portion of the hole jaw.

The hollow portion may be formed by a guide tube penetrating the bore.

In order to easily manufacture the hole jaw of the present invention, the hole jaw can be constituted by a main body and an assembly assembled to the main body. In this case, the guide tube may be formed integrally with the hole jaw body or may be coupled to penetrate the hole jaw body.

It is preferable from the viewpoint of manufacturing cost that the hole main body and the assembly in the present invention are configured as a plastic injection molding.

In addition, one side of the outer periphery of the hole of the present invention is formed with a buoyancy adjustment plate insertion slit cut in the longitudinal direction, the buoyancy control plate insertion slit to adjust the buoyancy and inclination of the hole, so that the buoyancy control plate is configured to be detachably coupled You can do The jaw body in the present invention is configured as a plastic injection molding, the buoyancy control plate may be composed of plastic or metal.

When the buoyancy control plate is inserted into the insertion slit may be configured to expose a portion of the buoyancy control plate to the outside of the body.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

Figure 4 is a punch in accordance with an embodiment of the present invention.

The bore bobber of this embodiment is comprised by the bore bobber body 120 which has a hollow through which a fishing line passes, and the coupling body 121 assembled with the bore bobber body 120. As shown in FIG. The jaw body main body 120 is provided with a projection-shaped knot engaging portion 130 at the top.

The hole bobbin body and the hole bobbin combination are designed to be fitted by the coupling step 129. In addition, the body is formed with a weight support 123 for supporting the weight when placing the weight to adjust the weight of the hole.

In addition, the body may be formed with a plate insertion slit 146 for inserting a weight adjustment plate to be described later. The main body is formed with a guide tube 122 forming a hollow portion in the longitudinal direction of the hole.

The pore main body 120 may be formed in, for example, an egg-shaped or streamlined symmetrical structure, and is preferably molded of synthetic resin. The outer circumferential surface of the hole body 120 should be treated with good visibility regardless of day / night.

After putting the weight in the body, the body and the assembly are assembled. After assembly, the main body and the assembly are integrated by special coating and tightly sealed.

According to the present embodiment, the hollow portion formed in the hole bobber main body 120 to allow the fishing line to pass through may be formed in the guide tube 122 penetrating the hole bobbin main body 120, and the guide pipe 122 ) May be formed integrally with the hole body (120).

The hole jaw body is preferably formed mostly in the empty space on the outer peripheral surface of the hole jaw body 120 and the guide tube 122.

In this embodiment, the projection-shaped knot catching portion is formed in the upper hollow portion of the main body. However, in the present invention, the projection-shaped knot catching portion does not have to be configured only at the upper portion of the hole jaw but can be formed at any position above and below the hollow portion. 4 shows an embodiment in which the main body and the assembly are separated in the longitudinal direction of the hole jaw to be coupled through the coupling step. However, it is also possible to separate the main body and the assembly in the perpendicular direction of the longitudinal direction of the bore and to be coupled through the coupling step.

5 is a cross-sectional view and an enlarged cross-sectional view of the main body of FIG. 4.

The hollow portion 124 through which the fishing line penetrates inside the main body 120 is formed by the guide tube 122. The upper portion of the guide tube is formed with a projection knot engaging portion 130. The knot-locking portion is configured by a plurality of knot engaging projections.

6 and 7 are explanatory views for explaining the shape in which the weight body is placed in the embodiment of the present invention.

In order to adjust the buoyancy of the bore to place the weight body 150,151 of the appropriate material inside the hole jaw, in the embodiment of the present invention by placing the weight body between the guide tube 122 and the weight support 123 The weight was fixed. The weight is formed to the left and right of the guide tube 122. As shown in FIG. 6, the weight body may be positioned at the lower position of the hole jaw by using the horseshoe-shaped weight 150 to hold the center of gravity of the hole jaw, and as shown in FIG. By positioning in the longitudinal direction, the center of gravity of the bore can be eccentric. The eccentric bore is inclined in water.

8, 9, 10, and 11 are diagrams for explaining the buoyancy control plate.

8 and 9 are a perspective view and a cross-sectional view of an embodiment of the hole jaw of the present invention, the buoyancy adjustment plate insertion slit is formed.

In the hole formed by the main body 120 and the coupling body 121, a protruding knot engaging portion 130 is formed on the upper portion of the main body, and the buoyancy adjustment plate insertion slit 146 is longitudinally formed in the main body. Is formed. In addition, the buoyancy control plate insertion slit is formed with a departure prevention groove 128 for supporting the buoyancy control plate so as not to be separated.

10 is an embodiment of the buoyancy control plate.

The buoyancy adjustment plate is intended to allow a quick and smooth adjustment of the buoyancy of the bore. This allows the buoyancy control plates with varying weight to be replaced quickly so that the buoyancy control can then be made quickly. In addition, the buoyancy control plate performs a function that can move the center of gravity of the bore. That is, the center of gravity is determined by the combined force of the bore itself and the weight of the weight and the buoyancy control plate, and depending on the result, the bore can stand vertically or tilted in the water.

The buoyancy control plate is preferably a buoyancy control plate 140 formed of a material having a specific gravity greater than that of the bore body 120, for example, a metal. The buoyancy control plate 140 is formed in a substantially semi-ellipse, but of course can be configured in a variety of forms.

However, the buoyancy control plate in the present invention is not limited to being composed of a metal material, and also the shape is not limited to the semi-ellipse. If necessary, the buoyancy control plate may be made of a plastic material or of the same material as that of a punch.

When the buoyancy control plate 140 is formed in the straight portion of the anti-separation protrusion 142 is inserted into the buoyancy control plate insertion groove of the bore so as not to escape.

The departure preventing protrusion 142 may be formed of a plurality of fixing protrusions. When the separation prevention protrusion of the buoyancy control plate 140 is inserted into the separation prevention groove 128 of the hole bobbin is a sliding coupling.

In addition, the buoyancy control plate 140 is preferably formed with a coupling hole 144 that can be connected to another buoyancy body (not shown) by a connecting means (not shown). For example, the hole jaw 110 of the present embodiment can be used as a torso, and another buoyancy body connected to the buoyancy control plate 140 as a connecting means can be used as a fisherman. .

In the present invention, the buoyancy control plate can form a different weight of the buoyancy control plate of the same size by forming a weight adjustment hole 143 for adjusting the weight. When the buoyancy adjustment plate of the present embodiment is inserted, the weight of the hole is eccentric to one side, and the inclination of the water surface can be greatly adjusted according to the weight of the buoyancy adjustment plate 140.

In the present invention, the shape of the separation prevention projections 142 and the separation prevention grooves 128 formed in the hole teeth formed on the buoyancy control plate can be variously modified. That is, to prevent the departure of the buoyancy control plate is possible to form a variety of escape prevention projections, and in accordance with the shape of the escape prevention projections of these various forms is to form a departure prevention groove in the hole.

11 is an explanatory diagram illustrating the coupling of the buoyancy control plate to the present invention hole jaw.

As shown in the figure, when the buoyancy adjustment plate protrudes from the outer surface of the hole, the buoyancy adjustment plate protrusion 141 is formed so as to form the size of the buoyancy adjustment plate protrusion 141. This makes it easier to replace it with another buoyancy control plate.

In addition, the buoyancy control plate protrusion 141 may also provide an effect that the resistance to water in the water.

It is explanatory drawing explaining the Example in which the horseshoe type weight body was located in the weight body support body.

A weight body is formed inside the hole jig to form the weight and center of gravity of the hole jig in a desired shape. In this embodiment, the horseshoe-shaped weight body 150, which is configured as a horseshoe type, is inserted around the guide tube 122, and the horseshoe-shaped weight body is supported by the weight support 123.

By well adjusting the position and size of the horseshoe-shaped weight 150 and the buoyancy control plate 141, the center of gravity of this embodiment is determined, and accordingly, whether the hole is tilted in water and how much is tilted is determined. Become. The horseshoe-shaped weight is convenient to allow the bore to stand vertically in the water, and when the longitudinal weight 151 of FIG. 7 is used, the bore is inclined in the water.

FIG. 13 is an explanatory diagram of a knot line formed with a stop knot on a fishing line. FIG.

The knot 102 on the fishing line 100 is tied while forming the stop knot 104. Stop knots 104 are formed at both ends of the knot. At least one or more stop knots are formed in a knot.

If the stop-knot is formed in only one place to tie the fishing line and the knot, the probability of the stop-knot being caught in the protruding knot hanger is lowered. Therefore, it is preferable that a plurality of stop knots are formed in order to ensure that the stop knots are reliably caught in the protruding knot locking portions of the hole jaws.

The stop knot is not only a stop knot formed by tying a knot to a fishing line, but also a stop knot formed separately on the knot itself.

In addition, it is a matter of course that you can tie a plurality of knots in more than one place in the fishing line.

The knot is tied to the fishing line, which is then automatically tied to the side of the fishing line. The stop knot formed at the end of the knot in the open state is much more likely to be caught in the protruding knots of the bore. In this way, when the knot string in the opened state is formed with one or more plurality of stop knots, the movement of the fishing line can be reliably limited by the stop knot and the protrusion knot locking portion.

The stop knot in the present invention is a concept including both being formed in the fishing line and also formed in the knot.

Figure 14 is an embodiment of the knot engaging projection formed on the projection type knot engaging portion of the hole jaw of the present invention.

The knot engaging projection 132 of this embodiment consisted of four projections. Knot engaging projections are arranged in an annular shape mainly around the hollow portion 124. Of course, the number of the knotting projections can be two or more. In the present embodiment, the knot engaging projection is composed of two or more knot engaging projections in the upward direction on the inner peripheral surface of the hollow piece.

Between the knot engaging projections are formed knot interval (133). The distance between knots, which is the distance between neighboring knots, should be larger than the thickness of the fishing line or the knot, and smaller than the size of the stop knot. That is, the fishing line or the knot is passed because it is smaller than the knot hang interval, the stop knot is greater than the knot hang interval will limit the movement so that it can no longer move by the knot hang projection.

Each of the knotting projections is preferably configured to be pointed toward the hollow toward the top of the hole. In this way, the stop knot can be easily caught in the knot locking projection.

In this embodiment, four knotting projections having a pointed shape are configured. However, the knot locking projection is formed upward in the hollow of the hole, and the knot gap between the adjacent knot locking projections is larger than the thickness of the fishing line or the knot, and various deformations are made smaller than the size of the stop knot. One such modification can also be seen in the form of a knotting protrusion of the present invention.

That is, in the present invention, the knot locking projections include all the structures and shapes of the knots hanging on the knot locking projections.

Fig. 15 is an explanatory diagram for explaining that the stop knot is caught in the protruding knot locking portion of the punching of the present invention.

When the fishing line 100 enters the hollow part of the hole and flows downward, the stop knot 104 is caught by the knot locking projection 132, and the fishing line can no longer move downward. If any one of the plurality of stop knots 104 formed on the fishing line 100 or the knot 102 is caught in the knot-hanging protrusion, the fishing line is no longer able to move downward.

According to the hole bobs formed with the knot locking projection according to the present invention, the knot locking projections 132 having the same function as the conventional stop ball are formed in the hollow portion 124 of the hole bob, thereby performing a function like the conventional stop ball. No parts required. Therefore, cumbersome work such as assembling the stop ball in the fishing line can be avoided.

In addition, by making a number of stop knots 104 formed on the fishing line so that the stop knots 104 are more securely caught between the knotting projections 132, the knots 104 are knotted projections 132 You can make sure it's caught between them.

In other words, the number of stop knots can be easily increased. It is easy to form at least one knot in the fishing line. The stop knot is automatically generated where the knot and the fishing line are tied.

When the hole bobbin having the projection-shaped knot locking portion of the present invention is used, the fishing line can be easily moved through the hollow portion of the hole bob easily. In addition, when using a hole jagged having a projection-shaped knot locking portion of the present invention, even if there is a slight bend in the fishing line compared to using a conventional stop ball, the fishing line can be moved quickly through the hollow of the hole.

In the above embodiments, the main body and the assembly are assembled and assembled, and the assembled bobbin can be configured in a form of being integrally sealed by coating or coating using paint. In addition, it is also possible to form a unitary body without constituting the body and the assembly, and of course, this type of punch belongs to the scope of the present invention.

In addition, in the embodiment of the present invention, for example, the shape of the hole jaws of the egg-shaped or streamlined structure for example, but not limited to this, the hole jaws of the present invention is not limited to this, two or more knotting projections protruding upwards is formed All of them may be applicable if they include the protruding knot catching part and all of them should be included in the scope of the present invention.

16 is another embodiment of the present invention in which the projection-shaped knotting portion is formed in the cylindrical guide tube passing through the hole jaw.

Hole shaped jagged knot formed part of the present invention can be produced in various forms. Although the embodiment using the plastic injection molding was shown in the above embodiment, a cylindrical tunnel is formed in the center of the hole jaw 200 made of wood, and a cylindrical guide tube 201 having a protrusion-shaped knotting part is inserted into the cylindrical tunnel. You can also configure.

According to the hole jaw according to the present invention in which the projection-shaped knot locking portion constituted as described above, there is no need for a component having the same function as a conventional stop ball.

The conventional stop ball consumes a great deal of care and time in order to fit in a fishing line. This is because the stop bead is not only small in size but also it is not easy to insert the fishing line into the small knot stop hole formed in the stop bead.

However, the use of the poke of the present invention can avoid the cumbersome work such as assembling the stop ball on the fishing line.

Conventional forms of bore have always been a factor in limiting the speed of flow as fishing lines pass through the bore due to the presence of knot stop holes.

The knot stop hole in the bore is to allow the fishing line to pass through and the stop knot to pass through, which may form on the stop ball or form part of the body of the bore.

The size of the knot stop hole must be smaller than the size of the stop knot formed on the fishing line, and it must function with a limited dimension that must be larger than the thickness of the fishing line. If the size of the knot stop hole is larger than the size of the knot, the knot will not function. If the knot stop hole is smaller than the thickness of the fishing line, the knot will not be able to penetrate the knot. Because it becomes.

Of course, when comparing the size of the knot stop hole with the size of the hollow formed in the hole, the size of the knot stop hole must be significantly smaller than the size of the hole of the hollow.

Due to this limiting factor, the twisted fishing line takes a longer time to pass through the knot stop hole of the conventional stop ball, and in some cases, the group is accompanied.

In the present invention, however, there is no knot stop hole, and even a fishing line twisted through a hollow having a relatively larger diameter than the knot stop hole is smoothly moved.

Conventional knot stop hole is present in the state of restricting the flow of the fishing line at all times while the fishing line flows to meet the stop knot formed in the fishing line serves to stop the flow of the fishing line.

However, the puncture of the present invention only restricts the passage of the fishing line passing through the puncture only when the stop knot formed on the fishing line or the knot reaches the protruding knot-hanging portion of the puncture of the present invention. The large hollow portion of the bore allows for rapid and free flow.

That is, the fishing line used in the hole jaws of the present invention is able to move quickly without resistance through a large hollow formed in the hole jaws. In this respect, the present invention can be said to be innovative.

Claims (12)

In the hole bob formed the hollow portion through which the fishing line passes, A hole jagged portion having a projection-shaped knot engaging portion, characterized in that it comprises a projection-shaped knot engaging portion formed at least two knot engaging projections projecting upward in the hollow portion of the hole. The method of claim 1, wherein the knotting projection is composed of knotting projections arranged in an annular shape around the hollow portion, wherein the spacing between neighboring knotting projections is larger than the thickness of the fishing line and the knot, and smaller than the size of the stop knot. Perforated bobbins made of protruding knot locking parts. 2. The punched bobbin of claim 1, wherein the punched jig comprises a main body constituted as a plastic injection molded product and a combination constituted as a plastic injection molded product assembled to the main body. According to claim 1, wherein the hollow portion is formed with a projection-shaped knot engaging portion, characterized in that formed by a guide tube penetrating the hole. 4. The hole jaw of claim 3, wherein a weight support is formed in the hole jaw body. 5. The hole jaw of claim 4, wherein the guide tube is formed integrally with the hole jaw. The method of claim 1, wherein the knotted projection is formed as a protruding knot engaging portion characterized in that the configuration toward the hollow toward the top. The method of claim 1, A buoyancy control plate insertion slit cut in the longitudinal direction is formed on one side of the outer peripheral surface of the bore, and the buoyancy control plate insertion slit to adjust the buoyancy and inclination of the bore, characterized in that the buoyancy control plate is detachably coupled Bore bobber with protruding knot locking parts. The method of claim 8, The buoyancy control plate insertion slit is formed with a departure prevention groove 128 for supporting the buoyancy control plate not to be detached, the buoyancy adjustment plate is characterized in that the buckle-type locking portion is characterized in that the separation prevention projections are formed . 9. The hole bobbin according to claim 8, wherein when the buoyancy adjustment plate is inserted into the buoyancy adjustment plate insertion slit of the bore, a portion of the buoyancy adjustment plate is configured to be exposed to the outside of the bore jaw. 2. The hole bobbin according to claim 1, wherein a projection-shaped knot catching portion is formed in a cylindrical guide tube passing through the hole-jack. 6. The hole bobbin according to claim 5, wherein a horseshoe-shaped weight body is positioned on the weight supporter.

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